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International Journal of Photoenergy
Volume 2013, Article ID 728280, 6 pages
http://dx.doi.org/10.1155/2013/728280
Research Article

Optical and Structural Investigation of CdSe Quantum Dots Dispersed in PVA Matrix and Photovoltaic Applications

Material Science Laboratory, Department of Physics, Sibsagar College, Joysagar, Assam 785665, India

Received 30 May 2013; Revised 21 August 2013; Accepted 4 September 2013

Academic Editor: Giuseppe Calogero

Copyright © 2013 Pallabi Phukan and Dulen Saikia. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

CdSe quantum dots (QDs) dispersed in polyvinyl alcohol (PVA) matrix with their sizes within the quantum dot regime have been synthesized via a simple heat induced thermolysis technique. The effect of the concentrations of the cadmium source on the optical properties of CdSe/PVA thin films was investigated through UV-Vis absorption spectroscopy. The structural analysis and particle size determination as well as morphological studies of the CdSe/PVA nanocomposite thin films were done with the help of X-ray diffraction (XRD) and transmission electron microscopy (TEM). The XRD analysis reveals that CdSe/PVA nanocomposite thin film has a hexagonal (wurtzite) structure. A prototype thin film solar cell of CdSe/CdTe has been synthesized and its photovoltaic parameters were measured.